My name is John Dougherty. Been a lurker for a while, interested in the carburetor related posts. Some great info here!Starting racing back in 1979 with a '55 Chevy and currently run an S10 pick up. The S10 has a small block 400 on E85 with a little n2o (so far). Been grinding cams about 22 years now. Live in Northern California and race at Sacramento raceway.

Hey John. Welcome again!! How's about posting some pics of that S10 down in the "Show Your Stuff" section so we can see what you're doing!

And yeah, there are a few guys here that do some stuff with E85 and from what Beretta has posted, there's some REAL good MPH improvements with it to date on his 540 BBC. In fact, he called me today from the track with info that suggested that he was still PHAT and running 3 MPH faster than he ever has at the same DA!

Ennywho, hope you enjoy you're time here and also hope that you can contribute as much as you learn!!

Went from 10.16-132 on race gas in 60 degree weather to 10.15-133 in 95 degrees on E85. Tried to spray it and found out it makes a lot more torque and blew thru the converter.

Not surprising as from what I've found, you can't have BOTH, ie, if you get one that runs good with NO2, then it's not worth a damn on gas alone. And on the other side, ie, gas setup running NO2, then it's not worth a damn there either as the converter will be too loose. That's one reason I DO NOT RUN NO2! You can't have it both ways and racing is expensive enough without adding something that will break more s**t and cost more to run. But hey, whatever blows you skirt up, right!

Went from 10.16-132 on race gas in 60 degree weather to 10.15-133 in 95 degrees on E85. Tried to spray it and found out it makes a lot more torque and blew thru the converter.

Not surprising as from what I've found, you can't have BOTH, ie, if you get one that runs good with NO2, then it's not worth a damn on gas alone. And on the other side, ie, gas setup running NO2, then it's not worth a damn there either as the converter will be too loose. That's one reason I DO NOT RUN NO2! You can't have it both ways and racing is expensive enough without adding something that will break more s**t and cost more to run. But hey, whatever blows you skirt up, right!

I bought that converter in 1998, and its been in 3 different cars with 100's of passes. I got my moneys worth out of it for sure. The new converter is more dedicated for nitrous, and wants a lot of power put to it. Pulls the engine down on the hit, and on each shift (N/A). Once I get the fuel curve worked out a little better I will spray it and see.